Locate the Learn button on the LiftMaster garage door opener motor unit
Press and release the Learn button
Within 30 seconds, press and hold the button on the remote you want to program
Release the remote button when the opener light flashes or you hear a click
Test the remote to confirm it works
If needed, repeat the process for additional remotes
To erase all remotes, press and hold the Learn button until the indicator light turns off
Reprogram each remote after clearing the memory